Electric switch.



W.H. FARMER. ELECTRIC SWITCH. APPLICATION men :uLv 22, 1915.

Pafntd 0613.12, 1915.

v LE-. i

member which is designated by the numeral 32 is lformed of brass and hasprojecting or depending `therefrom a screw threaded'portion 33 which isadapted to engage the screw threads of the integral nut formed beneaththe recess in the` insulator block. It will be noted that the connectingmember has formed thereon an enlarged portion designated by the numeral32 intermediate its ends, and this enlarged portion is adapted to movefreely in the recess 2 of the insulator block upon coactionl between thethreaded portion 33 of the said Amember and the nut 3 below said recessfor a purpose to be hereinafter more fully described.A

It will be obvious vthat when the parts of this device are assembled asshown in Figs. l and 5 of the drawings, the current will be fed to oneof the conductors through one of the wires which may be designated bythe numeral 20, and upon the insertion of the movable member in therecess 2 between the said conductors 5, the contact will be formedtherebetween and the circuit will be completed between the wire and thewire 21.

,This connection is controlled by` means of the movable member havingits lower end 33 operatively engaging lthel screw threads 4 on thenut 3which is positioned below the recess 2 in the insulator block, wherebyupon rotation of the said member by means of the handle 3l, the enlargedportion 32 of the said member will be brought into and out of contactwith the spaced ends of the conductors which are positioned in the saidre'- cess. All that is necessary to operate this switch is to rotate thesaid member as above described to form a connection between saidconductors, and this member will always be in position to make a safeand sure, and

water proof contact therebetween.

This switchis adapted to be set up between the batteries and engine,current from the batteries entering the switch on one of the wires ashereinbefore described, and is carried therethrough to the other wire.This switch is operated by simply turning the movable member which ispositioned in the recess in said insulating wire which easily @epics ofthis patent may be obtained for five cents each, by

of some insulating I`na` .terial, and the lower portion of the saidmesses and simply makesor breaks the connection between the saidV wires.It will be noted that in this switch the ends of the wires go straightin theendsof theinsulator'block, and are firmly and securely heldHerein, which is an improvement over devices where the wire has to bewound around a pin or lug, whereby they are veryliable to annoyingbreakages. Furthermore, the movable connecting member of this switch isformed in one piece whereby vwhen the engine is not in use, said member"may be removed, and thus render the same worthless for further useluntil it is replaced, which would prevent anyone disturbing the engineduring temporary absence of the op` erator.

- From the foregoing description of the construction of mv improvedswitch, ,the manner of applying the same to use, and the op erationthereof will be readily understood, and it will be seen that I haveprovided a simple, inexpensive, and elicient means for carrying out theobjects of this invention.

claim:y v

A switch comprisinga one piece linsulator block having a centrallydisposed recess with a countersunk internally threaded portion therein,said block having a pair of diametrically extending passages from therecess to the ends of the block and a pair of vertically extendinglpassages bisecting each of the first mentioned passages, conductorspositioned in the diametrically extending passages projecting in spacedrelation in the recess, said conductors having openings therethroughalined with the vertical passages and sockets in their outer ends tore-A WILLIAM iii. FARMER.

`Witnesses:

HENRY I. PHINNEY, .LYMAN M. MCDOUGALL.

addressing the toniiiilssoiier of Patents,

Washington, 3J. C."

